RedHat EX200 Exam - Topic 2 Question 39 Discussion

Actual exam question for RedHat's EX200 exam

Question #: 39
Topic #: 2

Part 2 (on Node2 Server)

Task 4 [Managing Logical Volumes]

Resize the logical volume, lvrz and reduce filesystem to 4600 MiB. Make sure the the filesystem contents remain intact with mount point /datarz

(Note: partitions are seldom exactly the size requested, so anything within the range of 4200MiB to 4900MiB is acceptable)

AExplanation:
*
[root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vdb 252:16 0 5G 0 disk
vdb1 252:17 0 4.2G 0 part
vgrz-lvrz 253:2 0 4.1G 0 lvm /datarz
vdc 252:32 0 5G 0 disk
vdc1 252:33 0 4.4G 0 part
datavg-datalv 253:3 0 3.9G 0 lvm /data
vdd 252:48 0 5G 0 disk
vde 252:64 0 10G 0 disk
[root@node2 ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lvrz vgrz -wi-ao---- 4.10g
[root@node2 ~]# vgs
VG #PV #LV #SN Attr VSize VFree
vgrz 1 1 0 wz--n- <4.15g 48.00m
[root@node2 ~]# parted /dev/vdb print
Number Start End Size Type File system Flags
1 1049kB 4456MB 4455MB primary lvm
*
[root@node2 ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vgrz-lvrz ext4 4.0G 17M 3.8G 1% /datarz
[root@node2 ~]# parted /dev/vdb mkpart primary 4456MiB 5100MiB
[root@node2 ~]# parted /dev/vdb set 2 lvm on
[root@node2 ~]# udevadm settle
[root@node2 ~]# pvcreate /dev/vdb2
Physical volume '/dev/vdb2' successfully created.
*
[root@node2 ~]# vgextend vgrz /dev/vdb2
Volume group 'vgrz' successfully extended
[root@node2 ~]# lvextend -r -L 4600M /dev/vgrz/lvrz
Size of logical volume vgrz/lvrz changed from 4.10 GiB (1050 extents) to 4.49 GiB (1150 extents).
Logical volume vgrz/lvrz successfully resized.
[root@node2 ~]# resize2fs /dev/vgrz/lvrz
[root@node2 ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vgrz-lvrz ext4 4.4G 17M 4.2G 1% /datarz

Show Suggested Answer

Suggested Answer: A

by Natalie at May 04, 2022, 11:06 AM

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Rana

7 months ago

Agreed, always back up before resizing!

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Ceola

7 months ago

I thought resizing could mess things up, are you sure it’s safe?

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Devorah

7 months ago

Nice, that’s within the acceptable range!

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Denny

7 months ago

Wait, did you check if the filesystem is intact?

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Lucy

7 months ago

Just resized lvrz to 4600 MiB, looks good!

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Lera

8 months ago

I recall using `lvextend` and `resize2fs`, but I'm a bit confused about the order of operations. Do we need to resize the filesystem before or after the logical volume?

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Mariann

8 months ago

I feel like I need to double-check the range for the filesystem size. Was it 4200MiB to 4900MiB? I hope I remember that correctly.

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Aron

8 months ago

I think we did a similar question where we had to extend a logical volume. The steps might be somewhat similar, right?

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Carma

8 months ago

I remember we practiced resizing logical volumes, but I'm not entirely sure about the exact commands to use for reducing the filesystem size.

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Alysa

8 months ago

Whew, this is a lot to take in. But I think if I break it down step-by-step, I can work through this. First I'll need to calculate the CAPM and APT expected returns, then compare the factor exposures and risks. Shouldn't be too bad if I take it one piece at a time.

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Charlesetta

8 months ago

Hmm, I'm a bit unsure about this one. I know the data privacy diligence process is important for M&A deals, but I'm not totally clear on all the specific steps involved. I'll have to think this through carefully.

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Jerlene

8 months ago

Hmm, I'm not totally sure about this one. I know there are different types of routers, but I can't remember the specific name for the one used as a firewall.

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Brice

8 months ago

I'm a bit confused here. The question mentions Azure policies, but the answer choices don't seem to directly match that. I'll need to re-read the question and think about which Azure service would handle this kind of document protection.

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